State Streams and React — Medium

  • Each connected component is forced to shallow compare in the shouldComponentUpdate lifecycle method because it doesn’t know if it just received a state update which is relevant or not.
  • The above gives us two action streams that we can use to reduce state with.
  • A state stream is effectively the result of reducing a stream of actions.
  • As mentioned before, the two core building blocks of a module’s state stream is its action stream and its reducer (of said action stream).
  • Accessing State in Action Streams

Read the full article, click here.


@MarkusCtz: “Why RxJS is the Better Tool for Unidirectional Data Flow: @christianalfoni @BenLesh @dan_abramov #reactjs #redux #rx”


Why RxJS is the Better Tool for Unidirectional Data Flow


State Streams and React — Medium

Release v2.27.0 · ProjectSeptemberInc/gl-react-native · GitHub

  • import React , { Component } from ” react ” ; import { View , Animated } from ” react-native ” ; import { Surface } from ” gl-react-native ” ; import GL from ” gl-react ” ; const stateForTime = t => ({ colors : [ [ Math .
  • import React , { Component } from ” react ” ; import { View , Animated } from ” react-native ” ; import { AnimatedSurface } from ” gl-react-native ” ; import GL from ” gl-react ” ; export default class AnimatedExample extends Component { state = { heightValue : new Animated.
  • Node uniforms = {{ colors, particles, }} shader = {{ // inline example frag : ` precision highp float; varying vec2 uv; uniform vec4 colors[3]; uniform vec2 particles[3]; // N.B. don’t abuse these technique.
  • cos ( 1 + 0.003 * t), 1 ] ], particles : [ [ 0.3 , 0.3 ], [ 0.7 , 0.5 ], [ 0.4 , 0.9 ] ] }); export default class AnimatedExample extends Component { state = stateForTime ( 0 ); componentWillMount () { const begin = Date .
  • interval ); } render () { const { colors , particles } = this .

Read the full article, click here.


@greweb: “gl-react-native 2.27.0 featuring Array uniforms, AnimatedSurface, big triangle optim”


gl-react-native – OpenGL bindings for React Native to implement complex effects over images and components, in the descriptive VDOM paradigm


Release v2.27.0 · ProjectSeptemberInc/gl-react-native · GitHub

core-notes/june-09.md at master · reactjs/core-notes · GitHub

  • We might want to adopt a proposal champion process similar to TC39.
  • Property initializers are currently extremely verbose with Flow, and this needs to be fixed.
  • We’d like to have internal champions the same way TC39 has champions.
  • Ben is working on enabling property initializers in Facebook codebase.
  • Will start working on a new codemod to convert more components to classes with property initializers.

Read the full article, click here.


@dan_abramov: “Yesterday’s @reactjs team meeting notes:”


core-notes – Weekly meeting notes from the React core team


core-notes/june-09.md at master · reactjs/core-notes · GitHub

Master ReactJS: Learn React JS from Scratch Udemy Coupon 50%

Master ReactJS: Learn React JS from Scratch Bywkyx4E
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#nodejs #javascript #node

  • 12. How to make use of Inline Styles
  • 13. Making use of AJAX technique
  • The course covers all the topics from basic to advance including Flux.
  • Master ReactJS: Learn React JS from Scratch
  • At the end of the course you will also develop a course cart application which will brush up all the concepts that we have covered in this amazing course

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@nodejs_geek: “Master ReactJS: Learn React JS from Scratch Bywkyx4E

#nodejs #javascript #node”


Master the art of ReactJS and be ready for the future of web developmet. Companies like Facebook and instagram are already making use of ReactJS to build dynamic User Interfaces for better user experience


Master ReactJS: Learn React JS from Scratch Udemy Coupon 50%

Thinking in React

Thinking in @reactjs with a bunch of @jsfiddle examples –

  • Use the props to filter the rows in ProductTable and set the values of the form fields in SearchBar .
  • Step 1: Break the UI into a component hierarchy #
  • Find a common owner component (a single component above all the components that need the state in the hierarchy).
  • If you’re familiar with the concept of state , don’t use state at all to build this static version.
  • If you can’t find a component where it makes sense to own the state, create a new component simply for holding the state and add it somewhere in the hierarchy above the common owner component.

Read the full article, click here.


@oskar: “Thinking in @reactjs with a bunch of @jsfiddle examples –”


React is, in my opinion, the premier way to build big, fast Web apps with JavaScript. It has scaled very well for us at Facebook and Instagram.


Thinking in React

React Higher Order Components in depth — Medium

  • Props Proxy: The HOC manipulates the props being passed to the WrappedComponent W ,
  • We also pass through the props that the HOC receives the name Props Proxy .
  • Parent Components are just React Components that have some children.
  • A Higher Order Component is just a React Component that wraps another one.
  • Parent Components can be used freely in an Elements tree, they are not restricted to once per Component class as HOCs are.

Read the full article, click here.


@dan_abramov: “Deep writeup by @franleplant on higher order components in @reactjs”


AbstractThis post is targeted to advanced users that want to exploit the HOC pattern. If you are new to React you should probably start by reading React’s …


React Higher Order Components in depth — Medium

Which is More Popular: Angular JS or React JS?

  • AngularJS tracks and delivers updated relational content to users, without requiring developers to write additional code.
  • The two frameworks differ from each other in the categories of feature, functionality, usage and performance.
  • The developers must avoid using the two frameworks together to prevent the web application from becoming complex.
  • Bidirectional Data Binding: AngularJS further beats React in the category of data binding.
  • It becomes easier for web developers to boost the website’s user experience by allowing visitors to access new and dynamic content without leaving the web page.

Read the full article, click here.


@AliyahChoudhry: “Understanding Major Differences between #AngularJS and #ReactJS”


Both AngularJS and ReactJS are widely used front-end frameworks. AngularJS is a JavaScript based structural framework, whereas React is a JavaScript library for developing web user interfaces. According to the usage statistics posted on various websites, AngularJS is currently more popular than React. But a number of reports recently highlighted the growing popularity of React.


Which is More Popular: Angular JS or React JS?